1 Kings 9:21
Their children that were left after them in the land, whom the children of Israel also were not able utterly to destroy, upon those did Solomon levy a tribute of bondservice unto this day.
Their children that were left after them in the land,.... The posterity of those left unsubdued in the times of Joshua:
whom the children of Israel also were not able utterly to destroy; in later times, though now it is thought by some it was not for want of power, but because they had made a covenant with them, as the Gibeonites did, and therefore they could not, because it would have been a breach of covenant to have destroyed them; see 2 Chronicles 8:8,
upon these did Solomon levy a tribute of bond service unto this day; not a tribute of money, which being poor they were not able to pay, but of service, and which being once laid on was continued, and even to the time of the writing of this book.